* {
    margin: 0;
    padding: 0;
  }
  
  .clearfix:after {
    content: "";
    display: table;
    font-size: 0 !important;
    line-height: 0 !important;
    height: 0;
    width: 0;
    clear: both;
  }
  
  ul li,
  ol li {
    list-style: none;
  }
  
  a {
    text-decoration: none;
    outline: 0;
    display: inline-block;
  }
  
  * {
    padding: 0;
    margin: 0;
  }
  
  input {
    border: 0;
    outline: 0;
  }
  
  em,
  i {
    font-style: normal;
  }
  
  img {
    border: none;
    outline: 0;
  }
  
  html {
    font-family: "微软雅黑";
    width: 100%;
  }
  iframe{
     width: 100%;
     height: 100%;
  }
  body {
    width: 100%;
    position: relative;
  }
  
  input::-webkit-input-placeholder,
  textarea::-webkit-input-placeholder {
    color: #666;
    font-size: 12px;
  }
  
  input:-moz-placeholder,
  textarea:-moz-placeholder {
    color: #666;
    font-size: 12px;
  }
  
  input::-moz-placeholder,
  textarea::-moz-placeholder {
    color: #666;
    font-size: 12px;
  }
  
  input:-ms-input-placeholder,
  textarea:-ms-input-placeholder {
    color: #666;
    font-size: 12px;
  }
  
  